Home Purchase Financing Calculator
Enter price, equity, federal state, agent fee, rate and repayment to get purchase costs, loan amount, monthly payment, balance after the fixed-rate period and term.
Typically 3.57 % per party (§ 656c BGB: buyer and seller split the commission). Enter 0 if no agent is involved.
Purchase costs (12.07 %)
Loan amount
€276,210.00
Monthly installment
€1,265.96
Remaining debt after 10 years
€210,180.84
Total term (estimated)
approx. 29 years
Total interest paid
€163,510.02
Note: These calculations are for informational purposes only and do not replace professional tax or financial advice. All information without guarantee.
FAQ
Frequently Asked Questions
How much equity do I need for a property loan?
At least 20–30 % of the purchase price is recommended to cover acquisition costs (approx. 5.5–12 %, depending on the state and whether an agent is involved) and secure good rates. Less equity is possible but leads to higher interest and longer terms.
What are purchase ancillary costs?
Purchase ancillary costs include: property transfer tax (3.5–6.5 % by state), notary fees (approx. 1.5 %), land register (approx. 0.5 %) and optionally agent commission (usually up to 3.57 % per party). Total approx. 5.5 % (Bavaria without an agent) to just over 12 % (states with 6.5 % transfer tax, with an agent) of the purchase price.
How long should the fixed-rate period be?
At historically normal rates, experts recommend 10–15 years. At current rates around 3.5–4.5 % a 10–15-year fix provides good planning security.
What happens after the fixed-rate period ends?
The remaining debt is refinanced at then-current market rates. Interest rate risk: rates may be higher. A forward loan can lock in the rate up to 5 years in advance.
Guide
What is the Home Purchase Financing Calculator?
The home purchase financing calculator computes the monthly instalment for property loans and mortgages. It factors in purchase price, equity, interest rate, repayment and acquisition costs.
How does the Home Purchase Financing Calculator work?
Enter purchase price, equity, federal state, agent commission, interest rate and initial repayment. The calculator adds the purchase costs: property transfer tax at the rate of the chosen state, notary (approx. 1.5 %) and land register (approx. 0.5 %), plus the agent commission (0 % without an agent). The loan amount is price + purchase costs − equity. From this it computes the monthly annuity, remaining debt after the fixed-rate period and total term to full repayment.
Key Data and Facts
Property transfer tax by state: 3.5–6.5 %. Notary fees: approx. 1.5 %, land register: approx. 0.5 % of the price. Agent commission: usually up to 3.57 % (incl. VAT) per party, buyer and seller share it (§ 656c BGB). Total purchase costs: approx. 5.5–12 % of the price. Recommended equity: at least the purchase costs plus 20 % of the price. Mortgage rates 2026 (10-year fix): approx. 3.5–4.5 % p.a.
Step-by-Step Guide
Step-by-step: 1. Purchase price + costs: transfer tax (3.5–6.5 % by state), notary (approx. 1.5 %), land register (approx. 0.5 %), agent (0–3.57 %). Total ancillary costs: approx. 5.5–12 %. 2. Equity: at least 10–20 % of total. More equity = better rate. 3. Loan amount = price + costs − equity. 4. Choose fixed-rate period. 5. Set repayment: at least 2 % recommended. 6. Monthly payment = (loan × (rate + repayment)) ÷ 12.
Calculation Example
Purchase price 350,000 EUR in North Rhine-Westphalia: transfer tax 6.5 % = 22,750 EUR, notary and land register approx. 2 % = 7,000 EUR, agent 3.57 % = 12,495 EUR, purchase costs together 42,245 EUR. Equity 112,245 EUR (purchase costs + 70,000 EUR = 20 % of the price), loan 280,000 EUR. Rate 3.8 %, repayment 2.5 %: monthly payment 280,000 x 6.3 % / 12 = 1,470 EUR. Term to full repayment: approx. 24.4 years (293 instalments).
Sources
Official sources
Calculations are based on applicable German laws and official data:
- Deutsche Bundesbank
- Bundesanstalt für Finanzdienstleistungsaufsicht (BaFin)
- Statistisches Bundesamt (Destatis)
Full methodology at Methodology.
Reviewed by Konstantin Iakovlev · Last updated:
Finance
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